JP2020065481A - Riding mower - Google Patents

Abstract

To provide a riding mower with a jack device capable of lifting a front edge of a vehicle body, capable of being obtained at low cost while a jack body is firmly supported by a vehicle body side portion against the ground reaction force and can be jacked up, and capable of accelerating the jack-up work.SOLUTION: A balance weight mounting part 14 is provided in the front part of a vehicle body. A jack device 19 has a jack body 19A, and an operating handle 19B detachably mounted to the jack body 19A and enabling a telescopic operation of the jack body 19A in a mounted state. The jack body 19A is swingably supported to the balance weight mounting part 14 while being changeable in a posture over a lowering use posture and a lifting storage posture. A handle storage portion 14C capable of storing the operating handle 19B is included in the balance weight mounting part 14.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a riding-type mower equipped with a mowing device provided between front and rear wheels of a vehicle body.

  Some of the riding-type mowers described above are provided with a jack device capable of lifting the front end side of the vehicle body. By lifting the mowing device by lifting the front end side of the vehicle body, and keeping the mowing device attached to the vehicle body, it is possible to maintain the inside of the mowing device. That is, the jack device has a jack body and an operation handle that is detachably attached to the jack body and that allows the extension and contraction operation of the jack body in the attached state. It is possible. Further, the jack main body is provided in a state in which the posture can be changed between a lowered use posture in which the front end side of the vehicle body can be lifted and a raised storage posture in which the jack body is raised.

  An example of this type of riding-type mower is disclosed in Patent Document 1. The riding-type mower disclosed in Patent Document 1 includes a swing leg as a jack body, a sliding leg, and a drive unit, and an operation unit as an operation handle.

JP, 2004-236616, A

  In the riding-type mower mentioned above, when the front end side of the vehicle body is lifted by the jack body, the vehicle body side portion supporting the jack body is firmly supported by the grounding reaction force without being distorted or deformed by the ground reaction force. If special reinforcement measures are applied to the parts, it will be expensive because a strong reinforcement member is required.

  The present invention provides a riding-type mower that can be obtained inexpensively while the front end side of the vehicle body can be jacked up in a state where the vehicle body side portion firmly supports the jack body, and that the jacking up operation can be performed quickly.

The riding mower according to the present invention is
A mowing device provided between the front and rear wheels of the vehicle body, a balance weight attachment portion provided at the front portion of the vehicle body, to which a balance weight is attached, a jack body, and a detachably mounted state on the jack body, in a mounted state With a jack device having an operation handle capable of expanding and contracting the jack body, and capable of lifting the front end side of the vehicle body by the jack main body in an extended state, the jack main body can be lifted on the front end side of the vehicle body. The balance weight mounting portion is swingably supported in a state in which the posture can be changed over a possible lowered use posture and a raised storage posture raised to the vehicle body side, and a handle storing portion for storing the operation handle is provided. The balance weight mounting portion is provided.

  According to this configuration, when jacking up the front end side of the vehicle body, the sturdy balance weight mounting portion that withstands the load of the balance weight supports the jack body against the ground reaction force, so that the jack body is resistant to the ground reaction force. It can be supported firmly and at a low cost because no special reinforcement measures are required.

  By storing the operation handle in the handle storage part, the operation handle can be taken out from the vicinity of the jack body and used, so that jack-up work can be performed quickly.

  In the present invention, it is preferable that the jack body is supported by a portion of the balance weight attachment portion that is on a front side of a weight accommodating portion that accommodates the balance weight.

  According to this configuration, even when the balance weight is attached, the jack main body can be used and stored on the front side of the balance weight, which facilitates the work.

  In the present invention, it is preferable that the handle storage portion is provided in a portion of the balance weight attachment portion that is on the rear side of the weight storage portion that stores the balance weight.

  According to this configuration, the load of the balance weight is applied to the front side of the handle storing portion, so that the load of the balance weight can be effectively applied to the vehicle body while the operation handle can be stored near the jack body. .

  In the present invention, the base end side portion of the jack main body is locked to the balance weight mounting portion to hold the jack main body in the lowered use posture, and the base end side portion is unlocked. A first posture holding mechanism that can be switched to a released state, in which the tip side portion of the jack body is locked to the balance weight mounting portion to hold the jack body in the raised storage posture; It is preferable that a second posture holding mechanism that can be switched to a released state in which the locking of the distal end side portion is released is provided.

  According to this configuration, when the jack main body is stored, the tip end side of the jack main body is locked to the balance weight mounting portion by the second posture maintaining mechanism, so that the jack body is pivotally supported by the balance weight mounting portion. At the base end side of the jack body and at the tip end side of the jack body that is locked to the balance weight attachment portion by the second posture holding mechanism, the jack body is supported by the balance weight attachment portion, so that the jack body is subjected to traveling vibration, etc. It can be stored in a stable state so that it does not shake.

It is a left side view showing the whole riding-type mower. It is a top view showing the whole riding-type mower. It is explanatory drawing which shows the use condition of a jack device. FIG. 6 is a plan view of the balance weight mounting portion in a state where the balance weight is mounted, the jack main body is in a raised storage posture, and the operation handle is stored. FIG. 7 is a cross-sectional bottom view of the balance weight mounting portion in a state where the balance weight is mounted, the jack main body is in the raised storage posture, and the operation handle is stored. FIG. 3 is a front view showing the jack main body in a raised storage posture and the operation handle in a stored state. FIG. 3 is a front view showing the jack main body in the lowered use posture and the operation handle attached to the jack main body. It is a perspective view showing a balance weight, an operation handle, and a balance weight attachment part. It is a top view which shows the operation device of a mowing device and a grass collection container. It is a side view which shows the operation device of a mowing device and a grass collection container. It is a perspective view showing an operation lever, a 1st supporting member, a 2nd supporting member, a lock member, etc. It is a longitudinal cross-sectional view showing the attachment in the mounted state.

Hereinafter, an embodiment which is an example of the present invention will be described with reference to the drawings.
In the following description, regarding the vehicle body of the riding-type mower, the direction of arrow F shown in FIGS. The direction is “upper body”, the direction of arrow D is “lower body”, the direction of arrow L shown in FIG. 2 is “left body”, and the direction of FIG. R is “right body”.

[About the riding mower]
As shown in FIGS. 1 and 2, a riding-type mower is equipped with a pair of left and right front wheels 1 capable of swinging steering, a pair of left and right rear wheels 2 being drivable, a driving seat 3, and A vehicle body having a driving unit 5 provided with a steering wheel 4 for steering the front wheels 1 is provided. A mowing device 6 for mowing grass and grass is provided between the front wheel 1 and the rear wheel 2. The mowing device 6 is supported by the vehicle body via a link mechanism 7 extending vertically swingably from the vehicle body. By the swinging operation of the link mechanism 7, the mowing device 6 is moved up and down in a descending working state in which the gauge wheel 6a is in contact with the ground and a non-elevating state in which the gauge wheel 6a is raised from the ground. A drive unit 9 having an engine 8 for outputting power transmitted to the rear wheels 2 and the mowing device 6 is formed in the front portion of the vehicle body. A grass container 10 is supported on the rear part of the vehicle body. A conveyance duct 11 is provided across the grass mowing device 6 and the grass collecting container 10 to convey the mowing grass and the cut grass obtained by the mowing device 6 to the grass collecting container 10. The transport duct 11 is provided so as to pass in the front-rear direction between the left and right rear wheels 2 below the vehicle body. The grass container 10 comprises a pillar frame 12 provided upright on the rear part of the vehicle body, and a pair of left and right links extending rearward from the pillar frame 12 to both lateral sides of the grass container 10 so as to be vertically swingable. It is supported on the rear part of the vehicle body via the mechanism 13. The grass collection container 10 is moved up and down by a swinging operation of the left and right link mechanisms 13 between a descending storage state in which the cut grass and the cut grass are stored and a rising discharge state in which the stored cut grass and the cut grass are discharged.

[About balance weight and jack device]
As shown in FIGS. 1 and 2, a balance weight mounting portion 14 is provided on the front portion of the vehicle body. Specifically, as shown in FIGS. 4 and 5, a front connecting frame 15 of the vehicle body frame is provided at the front portion of the vehicle body. The front connecting frame 15 is connected to the front portion of a pair of left and right front-rear frames 16 of the vehicle body frame. A connecting member 17 provided on the rear portion of the balance weight mounting portion 14 is connected to the front connecting frame 15 by a connecting bolt 18. The balance weight mounting portion 14 is provided so as to project forward from the vehicle body frame. The balance weight mounting portion 14 includes a jack support portion 14A for supporting the jack body 19A of the jack device 19, a weight storage portion 14B capable of storing a plurality of balance weights 20, and an operation handle 19B of the jack device 19. And a possible handle storage portion 14C.

  As shown in FIG. 8, the balance weight 20 includes a support hole 21 formed in the upper portion of the balance weight 20, a locking portion 22 protruding from the upper portion of the balance weight 20 in the left-right direction, and the balance weight 20. It is provided with tightening rod holes 23 formed at three positions in the lateral width direction.

  As shown in FIGS. 4, 5 and 8, the weight accommodating portion 14B includes a weight insertion space 25, weight hanging portions 26 provided on both right and left sides of the weight insertion space 25, and a front side of the weight insertion space 25. And a fixed wall portion 27 provided on the. A fastening rod hole 28 corresponding to the fastening rod hole 23 of the balance weight 20 is formed in the fixed wall portion 27.

  In the weight accommodating portion 14B, as shown in FIGS. 4 and 5, each of the plurality of balance weights 20 to be mounted is inserted into the weight insertion space 25 from above, and the left and right engaging portions 22 are attached to the weight hanging portions 26. The plurality of balance weights 20 are hooked and aligned in the front-rear direction, and are received and supported from below by the weight hanging portions 26. A weight tightening rod 29 is attached to each of the tightening rod holes 23 of each of the plurality of balance weights 20 and a tightening rod hole 28 of the fixed wall portion 27, and a screw member 29a attached to an end of the weight tightening rod 29 is tightened, By fastening the plurality of balance weights 20 to the fixed wall portion 27 with the screw members 29a, the plurality of balance weights 20 can be attached to the weight accommodating portion 14B. In this embodiment, five balance weights 20 are attached. The number of balance weights 20 is not limited to this, and four or less balance weights 20 may be mounted.

  As shown in FIG. 7, the jack device 19 has a jack main body 19A and an operation handle 19B for expanding and contracting the jack main body 19A.

  As shown in FIGS. 4 and 8, the jack support portion 14A is provided in the balance weight mounting portion 14 on the front side of the weight accommodating portion 14B. The jack support portion 14A includes a front wall portion 30 provided on the front side of the fixed wall portion 27, and left and right lateral wall portions 31 connecting the front wall portion 30 to the fixed wall portion 27. The fixed wall portion 27, the front wall portion 30, and the lateral wall portion 31 form a storage space 32 for storing the jack body 19A in a contracted state.

  As shown in FIGS. 6 and 7, the jack main body 19A includes a support shaft 33 provided at the base of the jack main body 19A. The support shaft 33 is supported by the fixed wall portion 27 and the front wall portion 30. The jack main body 19A is supported by the jack support portion 14A in a state in which it can be swung up and down between a retracted storage posture and a lowered use posture with the longitudinal axis P of the support shaft 33 as a swing fulcrum.

  As shown in FIG. 6, when the posture of the jack main body 19A is changed to the raised storage posture, the jack main body 19A enters the storage space 32 from below, and in the storage space 32, the jack main body 19A falls sideways along the lateral width direction of the vehicle body.

  As shown in FIG. 7, when the posture of the jack main body 19A is changed to the lowered use posture, the free end side projects downward from the storage space 32, and the entire jack main body 19A is in a vertical state along the vehicle body vertical direction. Become.

  As shown in FIGS. 5 and 6, a first posture holding mechanism 34 that holds the jack body 19A in the lowered use posture and the raised storage posture is provided at the base end side portion of the jack body 19A. As shown in FIGS. 5, 6, and 7, the first attitude holding mechanism 34 includes a positioning pin 35 supported by a base end side portion of the jack body 19A, a lock spring 36 externally fitted to the positioning pin 35, and a fixed wall portion. Positioning holes 37 and 38 formed at two positions of 27 are provided.

  The positioning pin 35 is slidably supported by a bracket 39 provided on a portion of the jack body 19A located on the lateral side of the support shaft 33. The lock spring 36 is provided between the spring receiving pin of the positioning pin 35 and the support side portion of the bracket 39, and biases the positioning pin 35 toward the fixed wall portion 27 by sliding.

  In the first attitude holding mechanism 34, as shown in FIGS. 5 and 6, when the attitude of the jack main body 19A is changed to the ascending and retracting attitude, the positioning pin 35 is engaged with the positioning hole 38 by the lock spring 36, and the jack main body. The base end side portion of 19A is locked to the fixed wall portion 27 of the balance weight mounting portion 14 by the positioning pin 35, and the jack body 19A enters the first operating state so as to hold the jack main body 19A in the raised storage posture.

  In the first posture holding mechanism 34, as shown in FIG. 7, when the posture of the jack main body 19A is changed to the lowered use posture, the positioning pin 35 is engaged with the positioning hole 37 by the lock spring 36, and the jack main body 19A moves. The base end side portion is locked to the fixed wall portion 27 by the positioning pin 35, and the jack body 19A is brought into the second operating state so as to hold the jack main body 19A in the lowered use posture.

  In the first posture holding mechanism 34, the positioning pin 35 is slid against the lock spring 36 by the release lever 40 provided on one end side of the positioning pin 35, so that the positioning pin 35 and the positioning hole 37 are positioned. When the jack body 19A comes off from the hole 38, the jack body 19A is released so as to be unlocked in the lowered use posture and the raised storage posture, and the posture of the jack body 19A can be changed.

  As shown in FIG. 5, at a position corresponding to the free end side of the jack main body 19A, a second posture holding mechanism 41 for holding the jack main body 19A in the raised storage posture is provided. As shown in FIGS. 5, 7, and 8, the second posture holding mechanism 41 includes a support pin 42 and a catcher 43 supported by the fixed wall portion 27. As shown in FIG. 8, the support pin 42 includes a lever 44 extending from one end of the support pin 42 in a direction orthogonal to the support pin 42.

  In the second attitude holding mechanism 41, as shown in FIG. 5, when the attitude of the jack body 19A is changed to the ascending and retracting attitude, the support pin 42 is inserted into the pin hole 45 (see FIGS. 7 and 8) of the fixed wall portion 27. By being inserted from the rear side and further inserted into the pin hole 46 (see FIG. 5) of the fixed wall portion 27, the support pin 42 is located below the free end side portion of the jack body 19A, and the play of the jack body 19A is reduced. The end portion is received and supported from below by the support pin 42, and is brought into a working state so as to hold the jack main body 19A in the raised storage posture. When the support pin 42 is in a state of receiving and supporting the jack main body 19A, the lever 44 is engaged with the catcher 43 to prevent the support pin 42 from coming off, and the second posture holding mechanism 41 is held in the operating state. It

  By pulling the lever 44 backward from the catcher 43, the support pin 42 is pulled out backward from the fixed wall portion 27, and the second posture holding mechanism 41 is in a released state so as to release the receiving support of the jack body 19A, The jack body 19A can be switched to the lowered use posture.

  As shown in FIG. 8, the output shaft portion 47 extends from the intermediate portion of the operation handle 19B in a direction orthogonal to the axis of the operation handle 19B. As shown in FIG. 7, the operation handle 19B can be detachably attached to the jack body 19A by the output shaft portion 47, and in the attached state, the jack body 19A can be extended / contracted. Specifically, the output shaft portion 47 is formed in a cylindrical shape that is fitted from above onto the outer peripheral portion of the operation shaft portion 48 of the jack body 19A. When the output shaft portion 47 is fitted into the operation shaft portion 48, the output shaft portion 47 and the operation shaft portion are caused by the non-circular outer peripheral shape of the operation shaft portion 48 and the non-circular inner peripheral shape of the output shaft portion 47. 48 and non-rotatably engage with each other, and the rotation of the operating handle 19B is transmitted to the operating shaft portion 48.

  As shown in FIG. 4, the handle storage portion 14C is provided in a portion of the balance weight mounting portion 14 on the rear side of the weight storage portion 14B. As shown in FIGS. 4 and 5, the handle storage portion 14C is provided with three catchers 49 arranged in the lateral direction of the vehicle body. The three catchers 49 are supported on the front side of the connecting member 17.

  In the handle storage portion 14C, as shown in FIGS. 4, 5 and 6, the output shaft portion 47 is in a state of extending downward from the operation handle 19B, and the first catcher from the left end among the three catchers 49. The output shaft portion 47 is inserted between the second catcher 49 and the second catcher 49, and the operation handle 19B is engaged with the first and second catchers 49 from the front, whereby the operation handle 19B is inserted into the first and second catchers 49. Removably held by the second catcher 49, the operation handle 19B can be stored in the handle storage portion 14C.

  In the handle storage portion 14C, the output handle 47 is inserted between the second catcher 49 from the left end and the third catcher 49 among the three catchers 49, so that the operation handle 19B is attached to the three catchers 49. The operation handle 19B can also be stored in the handle storage portion 14C by holding it detachably.

  That is, as shown in FIGS. 3 and 7, the positioning pin 35 is removed from the positioning hole 38 of the fixed wall portion 27, the first posture holding mechanism 34 is in the released state, and the support pin 42 is fixed to the front wall portion 30 and the fixed portion. When the second posture holding mechanism 41 is released from the wall portion 27 by removing it, the posture of the jack body 19A is changed to the lowered use posture. When the jack body 19A is in the lowered use posture, the positioning pin 35 is inserted into the positioning hole 37 by the lock spring 36, and the first posture holding mechanism 34 enters the second operating state. At this time, as shown in FIG. 7, the support pin 42 of the second posture holding mechanism 41 is attached to the front wall portion 30 and the fixed wall portion 27 on the side of the jack body 19A to lower the jack body 19A in the lowered use posture. The support pin 42 can be utilized as a member to be held at. When the jack body 19A is held in the lowered use posture by the first posture holding mechanism 34, the operation handle 19B is attached to the operation shaft portion 48 of the jack body 19A by the output shaft portion 47. When the attachment of the operation handle 19B to the jack body 19A is completed, the operation handle 19B is rotated around the axis of the operation shaft portion 48 as a rotation center to operate the jack body 19A toward the extension side, and the ground member of the jack body 19A. Even if 19C is grounded, the jack body 19A is operated further to the extension side. Then, as shown in FIG. 3, the front end side of the vehicle body is lifted by the jack body 19A with the axle center of the rear wheel 2 as a swing fulcrum. The front end side of the vehicle body is lifted while the ground reaction force is applied to the sturdy balance weight mounting portion 14. When the front end side of the vehicle body is lifted, the mowing device 6 is lifted to the front rising state, and maintenance work can be performed on the inside of the mowing device 6 from between the mowing blade housing 6b and the ground.

  In the state where the front end of the vehicle body is lifted, the operation handle 19B is rotated in the opposite direction to the direction in which the handle is lifted to operate the jack body 19A toward the contracted side. When the jack body 19A is in a contracted state, the operation handle 19B is removed from the jack body 19A, and the positioning pin 35 is pulled out from the positioning hole 37. When the first posture holding mechanism 34 is in the released state, the posture of the jack body 19A is changed to the raised storage posture. When the jack body 19A is in the raised storage posture, the positioning pin 35 is inserted into the positioning hole 38 by the lock spring 36, and the first posture holding mechanism 34 enters the first operating state. When the first posture holding mechanism 34 is in the first operating state, the support pins 42 are attached to the fixed wall portion 27 and the front wall portion 30, and the second posture holding mechanism 41 is put in the operating state. Then, not only the base end side portion of the jack body 19A is supported by the first posture holding mechanism 34, but also the free end side portion of the jack body 19A is supported by the second posture holding mechanism 41, and the jack body 19A is raised. Firmly held in the retracted position.

  When the jack main body 19A is stored, the operation handle 19B is stored in the handle storage portion 14C, so that the operation handle 19B is stored near the jack main body 19A.

[Mowing device and operating device for collecting container]
An operation device 50 for raising and lowering the mowing device 6 and raising and lowering the grass container 10 is configured as shown in FIGS.

  The operation device 50 includes a single operation lever 51, a first support member 52, and a second support member 53 as shown in FIG. A first operation shaft 54 is provided so as to project forward from the front portion of the first support member 52. The second support member 53 includes a bifurcated portion 53a, a support shaft 53b projecting rearward from the bifurcated portion 53a, and a forward projecting portion from one of the pair of left and right supporting side portions of the bifurcated portion 53a. The second operation shaft 55 is provided.

  As shown in FIGS. 9 and 10, the operation lever 51 extends upward from the first support member 52. The first support member 52 is supported inside the forked portion 53 a of the second support member 53 so as to be swingable around the first axis X. The support shaft 53b of the second support member 53 is supported by the boss portion 56 so as to be rotatable around the second axis Z. The boss portion 56 is formed on an operation panel 58 supported by a fender frame 57 included in the vehicle body. The second support member 53 is supported on the operation panel 58 so as to be rotatable around the second axis Y. The first axis X and the second axis Y are orthogonal to each other. The operation lever 51 is supported on the operation panel 58 in a state in which it can swing about the first axis X and in a state in which it can swing about the second axis Y.

  The first operation shaft 54 is provided on the first support member 52 in a state where the axis of the first operation shaft 54 and the second axis Y are located on the coaxial axis. The first operation shaft 54 and the slidable spool 59a of the first operation valve 59 provided on the back side of the operation panel 58 are interlockingly connected by the first connecting member 60 (see FIGS. 9 and 11). A portion of the first connecting member 60 that is connected to the first operating shaft 54 is provided with a spherical joint function that enables relative swinging of the first connecting member 60 and the first operating shaft 54. The first operation valve 59 is connected to a first hydraulic cylinder 61 (see FIG. 1) that rocks the link mechanism 13, and controls the first hydraulic cylinder 61 to expand and contract to move the grass container 10. Operate up and down.

  The second operation shaft 55 is provided on the second support member 53 in a state of being displaced laterally with respect to the second axis Z. The second operation shaft 55 and the slidable spool 62a of the second operation valve 62 provided on the back side of the operation panel 58 are interlockingly connected by the second connecting member 63 (see FIGS. 9 and 11). A portion of the second connecting member 63 that is connected to the second operating shaft 55 is provided with a spherical joint function that enables relative swinging of the second connecting member 63 and the second operating shaft 55. The second operation valve 62 is connected to a second hydraulic cylinder 78 (see FIG. 1) that swings the link mechanism 7, and controls the second hydraulic cylinder 78 to expand and contract to raise and lower the mowing device 6. Manipulate.

  That is, when the operation lever 51 is rocked around the first axis X, the first support member 52 rocks together with the operation lever 51, and the first operation shaft 54 moves up and down with the first axis X as a rocking fulcrum. The first operation valve 59 swings, and the spool 59a of the first operation valve 59 is pushed and pulled by the first operation shaft 54, and the first operation valve 59 controls the first hydraulic cylinder 61. As a result, the link mechanism 13 is vertically swung, and the grass container 10 is moved up and down. In this case, the first support member 52 swings around the first axis X with respect to the second support member 53, the second support member 53 is not operated, and the second operation valve 62 is not operated.

  When the operation lever 51 is rocked around the second axis Z, the first support member 52 and the second support member 53 rock together with the operation lever 51, and the second operation shaft 55 rocks the second axis Z. It swings up and down about the fulcrum, the spool 62a of the second operation valve 62 is pushed and pulled by the second operation shaft 55, and the second operation valve 62 controls the second hydraulic cylinder 78. As a result, the link mechanism 7 swings up and down, and the mowing device 6 moves up and down. In this case, even if the first support member 52 swings together with the operation lever 51, the first support member 52 swings around the second axis Z, so that the first operation shaft 54 moves relative to the first connecting member 60 with respect to the second axis Z. Only relative rotation around Z does not cause vertical swing, and the first operation valve 59 is not operated.

  As shown in FIGS. 9 and 10, a neutral lock mechanism 65 is provided across the operation lever 51 and the base member 64 supported by the operation panel 58. The operation lever 51 can be fixed by a neutral lock mechanism 65 at a neutral operation position corresponding to the neutral state of the first operation valve 59 and the second operation valve 62.

  Specifically, as shown in FIG. 11, the neutral lock mechanism 65 swings the locked member 66 extending from the first support member 52 to the base member side and the base member 64 via the support shaft 67. A lock member 68 movably supported and a spring 69 are provided. An opening 68a that allows the lock member 68 to be engaged with and disengaged from the locked member 66 is formed at the free end side portion of the lock member 68. A switching lever 70 for swinging the lock member 68 is connected to the support shaft 67. As shown in FIG. 9, the spring 69 is connected to the spring hooking portion 64 a of the base member 64 and the spring hooking portion 68 b of the lock member 68.

  In the neutral lock mechanism 65, as shown in FIG. 9 and as shown by the solid line in FIG. 10, in the state where the operation lever 51 is in the neutral operation position, the switching lever 70 is moved from the release position [OFF]. Switch to the lock position [ON] and operate. Then, the lock member 68 swings toward the operation lever side and engages with the locked member 66, swings the locked member 66 around the first axis X, and the second axis Z of the locked member 66. The swinging around is restricted by the lock member 68, and the operation lever 51 is locked at the neutral operation position. When the switching lever 70 is switched to the lock position [ON], the spring 69 is reversed to the lock side, the switching lever 70 is set to the lock position [ON], and the lock member 68 is engaged to the locked member 66. Held by 69.

  In the neutral lock mechanism 65, when the switching lever 70 is switched from the lock position [ON] to the release position [OFF] as shown by the chain double-dashed line in FIG. The operating lever 51 is rocked and separated from the locked member 66, and the rocking of the locked member 66 around the first axis X and the rocking of the locked member 66 around the second axis Z are allowed. The lock is released at the neutral operation position. When the switching lever 70 is switched to the release position [OFF], the spring 69 is reversed to the release side, the switching lever 70 is set to the release position [OFF], and the lock member 68 is separated from the locked member 66. Held by

[Attachment configuration]
FIG. 12 is a vertical cross-sectional view showing the attachment 71 when mounted on the front-rear frame 16 of the vehicle body. The attachment 71 is provided with a belt hooking member 77 on the vehicle body when the vehicle body is fixed to a carrier of a carrier by a belt.

  As shown in FIG. 12, the attachment 71 includes a lower member 72 formed in a U-shape having an upward opening so as to be fitted to the front-rear frame 16 from below, and a front-rear frame 16 and a lower member. And an upper member 73 formed in a U-shape with a downward opening so as to be fitted to the outer peripheral portion of 72 from above.

  Screw members 74 are attached to a plurality of locations inside the lower member 72. The screw member 74 is attached to the lower member 72 by welding. The lower member 72 and the upper member 73 are fixed to the front-rear frame 16 by tightening the side plate portion 73a of the upper member 73, the side plate portion 72a of the lower member 72, and the mounting bolt 75 into which the screw member 74 is inserted. Is configured. An adjusting plate 76 is arranged between the mounting bolt 75 and the front-rear frame 16. When the thickness of the frame to which the attachment is attached is different, the screw portion of the attachment bolt 75 can be adjusted so as not to come off the screw member 74 by adjusting the number of adjustment plates 76 to be interposed.

  A belt hanging member 77 is attached to the upper member 73. The belt hanging member 77 is attached by screwing so that it can be replaced with another belt hanging member having a different shape or size.

[Another embodiment]
(1) In the above-described embodiment, the jack body 19A is supported by the portion of the balance weight mounting portion 14 that is on the front side of the weight storage portion 14B, and the handle storage portion 14C is the weight storage portion of the balance weight mounting portion 14. Although the example provided on the rear side of 14B is shown, the invention is not limited to this. For example, the jack body 19A is supported by a portion rearward of the weight accommodating portion 14B, and the handle accommodating portion 14C is provided in a front portion of the weight accommodating portion 14B. 14B and the handle storage portion 14C may be arranged in any order.

(2) In the above-described embodiment, an example in which the second attitude holding mechanism 41 is provided has been shown, but the second attitude holding mechanism 41 may be omitted.

(3) Any structure may be adopted as the structure for supporting the balance weight 20, the structure for supporting the jack main body 19A, and the specific structure for supporting the operation handle 19B.

  The present invention is not limited to a riding-type mower equipped with a vehicle body that is steered by steering front wheels, but a vehicle body that is steered by a speed difference between left and right rear wheels is used. It can be applied to a riding-type mower equipped.

6 Mowing Device 14 Balance Weight Mounting Part 14B Weight Storage Part 14C Handle Storage Part 19 Jack Device 19A Jack Main Body 19B Operation Handle 20 Balance Weight 34 First Position Holding Mechanism 41 Second Position Holding Mechanism

Claims (4)

A mowing device provided between the front and rear wheels of the vehicle body,
A balance weight mounting portion provided on the front part of the vehicle body, to which a balance weight is mounted,
A jack main body and a jack device detachably attached to the jack main body and having an operation handle capable of expanding and contracting the jack main body in the attached state, and capable of lifting the front end side of the vehicle body by the jack main body in the extended state. And are provided,
The jack body is swingably supported by the balance weight mounting portion in a state in which the posture can be changed over a lowered use posture capable of lifting on the front end side of the vehicle body, a raised storage posture raised to the vehicle body side,
A riding-type mower in which a handle storage portion capable of storing the operation handle is provided in the balance weight mounting portion.   The riding-type mower according to claim 1, wherein the jack main body is supported by a portion of the balance weight mounting portion that is on a front side of a weight accommodating portion that accommodates the balance weight.   The riding-type mower according to claim 1 or 2, wherein the handle storage portion is provided in a portion of the balance weight attachment portion on a rear side of a weight storage portion in which the balance weight is stored. In a working state in which the base end side portion of the jack body is locked to the balance weight mounting portion to hold the jack body in the lowered use posture, and in a released state in which the lock of the base end side portion is released. A switchable first attitude holding mechanism is provided,
Switch between a working state in which the tip side portion of the jack body is locked to the balance weight mounting portion to hold the jack body in the raised storage posture and a release state in which the tip side portion is unlocked. The riding type mower according to any one of claims 1 to 3, further comprising a possible second attitude holding mechanism.

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